Production of Activated Carbon from Carbonized Thanaka Wood Using Phosphoric Acid Activation
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Abstract
This research aims to study the physical and chemical properties of activated carbon derived from carbonized Tanaka wood that has been activated with phosphoric acid. The results indicate that the activation with phosphoric acid at a ratio of charcoal (g) to phosphoric acid (mL) of 1:3 at 700˚C for 1 hr. has the maximum adsorption of iodine and methylene blue of 650.14 ± 47.21 and 71.63 ± 47.21 mg/g, respectively. The study of the physical and chemical characteristics found that the carbonized charcoal from Tanaka wood consists of elemental compositions of calcium (54.05% wt.), potassium (21.22% wt.), phosphorus (9.49% wt.), and magnesium (6.38% wt.). The zeta potential on the surface charge at pH 7 is negative (-34.17). The functional groups found in the carbonized charcoal and activated carbon from Tanaka wood include O-H, C-H, C=C, and C=C (Aromatic), that are similar the functional groups of commercial-grade activated carbon. Moreover, the activated carbon from Tanaka wood and commercial-grade activated carbon exhibit statistically identical efficiency in methylene blue absorption (P>.05). Therefore, Tanaka wood has the potential to be further developed into quality activated carbon, which can add value to the products and reduce the import of activated carbon from abroad.
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บทความในวารสารเกษตรนเรศวรที่ได้รับการตีพิมพ์ เป็นลิขสิทธิ์ของ คณะเกษตรศาสตร์
ข้อความที่ปรากฏในบทความแต่ละเรื่องในวารสารนี้เป็นความคิดเห็นส่วนตัวของผู้เขียนแต่ละท่านไม่เกี่ยวข้องกับคณะเกษตรศาสตต์ฯ
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